M210-16034 Applications in Automotive Market and ......2-4: Casting 2-5: Heat treatment 3.Laboratory...
Transcript of M210-16034 Applications in Automotive Market and ......2-4: Casting 2-5: Heat treatment 3.Laboratory...
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Applications in Automotive Market and Introduction to Gas Detectors and Alarms for
Safety and Security
M210-16034
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Document contents
About Riken Keiki Why do we need gas detectors?
Risks associated with toxic gases Applications in automotive market Major examples of accidents Product information International agents
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About Riken Keiki
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About Riken Keiki
RIKEN
1939
Riken Keiki
Riken Keiki was originally established to commercialize and sell detectors for preventing explosions in coal mines and on oil tankers.
HeadquartersTo be completed in September2018 (conceptual drawing)
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Methane gas measurements in coal mine
Optical Gas Indicator Model 3 (1939)
About Riken Keiki
CertificationNational heritage of
analytical and scientific instruments
2014
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Company name Riken Keiki Co., Ltd.
Established March 15, 1939
LocationHeadquarters: 2-7-6 Azusawa Itabashi-Ku, TokyoDevelopment Center: 2-3 Minamisakae-cho, Kasukabe-shi,
Saitama
Factories Hakodate-shi, Hokkaido; Sakurai-shi, Nara (affiliated company)
Headquarters Development Center
Company profile
To be completed in September 2018 (conceptual drawing)
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Headquarters(Itabashi-Ku, Tokyo)
Development Center(Kasukabe-shi, Saitama)
About Riken Keiki
Locations of sales officesDomestic
To be completed in September 2018 (conceptual drawing)
Global
Sales baseProduction baseMaintenance base
Riken Keiki Co., Ltd. headquarters
Affiliated company
Sales agent
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Various basesDomestic sales and branch offices: 20 locationsService stations: 32 locationsGlobal bases: 7 locations
Major sales items
Combustible gas detectors and alarmsGas detectors and alarms designed to prevent oxygen deficiency accidentsToxic gas detectors and alarmsCombined gas detectors and alarmsVarious measuring instruments for environmental measurements and other instruments
Capital 2,565.5 million yenNumber of employees
965 (non-consolidated), 1,127 (consolidated)* As of September 30, 2017
Hakodate Factory(Hakodate-shi, Hokkaido)
Company profile
Nara Factory(Sakurai-shi, Nara)
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1939Riken Keiki Co., Ltd. established to produce and sell optical gas detectors, photo-elasticity apparatuses, and other precision instruments invented and developed by RIKEN
1959 Start production and sale of combustible gas alarms and detectors (catalytic combustion type).1967 Start production and sale of oxygen measuring instruments (OX-1).
1970 Start production and sale of monitoring tape type measuring instruments (FP-200).
1972 Start production and sale of non-dispersive infrared measuring instruments (RI-550).1975 Start production and sale of electrochemical type measuring instruments (EC-231).
1986 Start production and sale of photoemission yield spectrometers (AC-1).
2009 70th anniversary of founding
2014 Start production and sale of portable X-ray diffractometers equipped with XRF (DF-01).
2015 Start production and sale of portable multi gas detectors (GX-6000), first product of its kind in Japan capable of housing photoionization detectors (PID).
Company history
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Why Do We Need Gas Detectors?Risks Associated with Toxic Gases
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Need for gas detectors (combustible gases)
We need gas detectors because flammable gas leaks can lead to explosions.
Criteria set by United Nations’ Globally Harmonized System of Classification and Labelling of Chemicals (GHS)According to the United Nations’ Globally Harmonized System of Classification and Labelling of Chemicals (GHS), a combustible gas (or flammable gas) is defined as follows:
A combustible or flammable gas is a gas having an explosive (flammable) range when mixed with air under atmospheric conditions of 20°C and standard pressure of 101.3 kPa.
Gases falling under this definition are further subdivided into the following two categories based on the severity of the associated risk:
Category 1 (Danger: Extremely flammable gas)Gases capable of igniting at 20°C and standard pressure of 101.3 kPa when occurring in a mixture of 13% or less by volume with air or having an explosive (flammable) range of at least 12% when mixed with air regardless of the lower explosion (flammable) limit
Category 2 (Warning: Flammable gas)Gases, other than those in Category 1, which are gaseous at 20°C and a standard pressure of 101.3 kPa and have an explosive (flammable) range when mixed with air
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Need for gas detectors (definition of permissible concentration)
Definition of permissible concentrationEven when workers are exposed to hazardous substances at work sites, no adverse health effects should emerge as long as the airborne concentration of the hazardous substance remains below the permissible concentration.
Recommended permissible concentrations have been set by the American Conference of Governmental Industrial Hygienists (ACGIH) and the Japan Society for Occupational Health. We use the ACGIH permissible concentrations.
Types of permissible concentrations TWA (Time Weighted Average)
Time Weighted Average refers to time-weighted average concentrations over an 8-hour workday and 40-hour workweek of routine work to which workers may be repeatedly exposed without adverse health effects.
STEL (Short Term Exposure Limit)Short Term Exposure Limit refers to exposure that does not lead to adverse health effects if each exposure does not exceed 15 minutes, the number of daily exposures does not exceed four, and the exposures are separated by at least one hour.
C (Ceiling value)Ceiling Value refers to the upper limit that can never be exceeded.
We need gas detectors because leaks exceeding permissible concentrations can lead to accidents.
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How human body reacts to oxygen-deficiency
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Effects of hydrogen sulfide (H2S) on human body
Concentration (ppm) Effects and Toxicity0.025 Smell vaguely. (It varies according to the individual.)0.3 Smell clearly.3 ‐ 5 Smell moderate degree of objectionable odor.10 Lower‐level to irritate eyes' mucus membranes.20 ‐ 40 A strong odor. Lower‐level to irritate lungs' mucous membranes.
100Sense of smell is impaired in 2 ‐ 15 minutes. Eyes and respiratory tract are irritated in 1 hour. 8 ‐ 48 hours continuous exposure can lead to death.
170 ‐ 300 1 hour exposure is the limit for not causing serious health problems.400 ‐ 700 Life‐threatening exposure in 0.5 ‐ 1 hour.800 ‐ 900 Bring on loss of consciousness, cessation of breathing and death.1000 Bring on immediate loss of consciousness and death.
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Concentration (ppm) Effects and Toxicity
100 No noticeable effects even after breathing for a few hours.
200 A mild headache in around 1.5 hours.
400 ‐ 500 Headache, nausea and ear ringing in around 1 hour.
600 ‐ 1000 Loss of consciousness in around 1 ‐ 1.5 hours.
1500 ‐ 2000 Headache, vertigo and disabling nausea in around 0.5 ‐ 1 hour, and losing consciousness.
3000 ‐ 6000 Headache, vertigo, disabling nausea...etc. in a few minutes. 10 ‐ 30 minutes exposure can lead to death.
10000 Bring on immediate loss of consciousness and death.
Effects of carbon monoxide (CO) on human body
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Applications in Automotive Market
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1. Entire flow of processes at automobile manufacturing plant
2. Automobile manufacturing processes 2-1: Pressing 2-2: Coating and drying (1) 2-3: Coating and drying (2) 2-4: Casting 2-5: Heat treatment
3. Laboratory4. Engine laboratory and environmental
testing laboratory5. Vehicle testing laboratory6. Test bench7. Lithium battery production8. Heating furnace
Applications in automotive market
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1. Entire flow of processes at automobile manufacturing plant
The figure below shows the risks posed by combustible and toxic gas leaks in automobile manufacturing processes and examples of gas detector and alarm installations.The following pages discuss the details of each process.
Steel plate PressingCoating
Welding
Drying ovenCoating inspectionAssembly
Inspection
Shipment
Engine assembly
Heat treatment Casting
Engine production processes
Go to 2-1.
Engine bench testing
For environmental measurement of HC, CO2, and oxygen deficiencies in engine testing labs
Go to 2-2.
Go to 2-3.
To detect combustible gases
Go to 2-5. Go to 2-4.Personal Single Gas
MonitorModel: GP-03
Oxygen Gas DetectorModel: GD-F88Di
Flame-proof Suction Type Gas DetectorModel: GD-D58
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Press machine
Fuel leaks Explosions
O2 indicator
Underground pit oxygen deficiencies and explosions
Detector heads for oxygen deficiencies Personal gas detector for workers
2-1: PressingDescription: In the pressing process, a large press machine or similar equipment is used to press the body.
Hazardous risks: Fuel from the press machine may leak and cause oxygen deficiencies or explosions in the underground pit.
Smart Transmitter/Gas
DetectorModel: SD-1OX
Oxygen Gas Detector Head
Model: GD-F3A-A
Multi-channel Gas Monitoring SystemModel: RM-5003
Four Gas Personal Monitor
Model: GX-2009
Detecting combustible gases to prevent explosionsDetecting oxygen concentration to prevent oxygen deficiencies
Safety
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Electrodeposition equipment
TolueneMEK
Toluene
MEK
2-2: Coating and drying (1)
Painting booth Drying oven
CO
Portable Multi Gas Detector
Model: GX-6000
Smart Transmitter/Gas DetectorModel: SD-1
Personal Single Gas Monitor
Model: GP-03Gas Detector
Model: RM-6000
To monitor concentrations of VOCs and CO discharged from the drying oven
Fixed PID VOC Monitor
Model: RVOC
Description: Paint is applied in various ways in coating and drying processes. The body is coated by electrodeposition or spray painting and dried in a drying oven.
Hazardous risks: Organic solvents used in the electrodepositionequipment and painting booth may cause explosions. CO poisoning may occur in the drying oven.
Detecting combustible gases to prevent explosionsDetecting CO to prevent poisoning
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Painting booth Drying oven
Deodorizing furnace
Personal gas detector for workersEnvironmental measurements before work
2-3: Coating and drying (2)
Detecting solvents in painting booth
Model: GH-5001-A80V Detecting burner leaks (LPG/LNG)
Model: GP-5001-A80
Detecting unburnt gas in drying oven (LPG/LNG)
Model: GP-5001-A80S/D58+ sampling unit
Multi-channel Gas Monitoring
Systems Model: RM-5000
series
Four Gas Personal Monitor
Model: GX-2009
Portable Multi Gas Detector
Model: GX-6000
Optical Interferometric Gas
Analyzer Model: FI-800
Combustible/Toxic Gas Detector Heads
Model: GD-A80series
* The GD-A80S nameplate is blue.
Smart Transmitter/Gas Detector
Model: SD-1RI
IN side measurement before waste gas combustion treatment
Model: RM-5003-SD-1RI / FI-800
OUT side measurement after waste gas combustion treatment
Model: RM-5003-SD-1RI+ sampling unit
Description: Paint is applied in various ways in coating and drying processes. The body is coated by electrodeposition or spray painting and dried in a drying oven.
Hazardous risks: Organic solvents used in the painting booth, drying oven, and deodorizing furnace may result in explosions or poisoning.
Detecting organic solvents to prevent explosions and poisoning
Safety
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Underground pit
Casting machine control panel
To burner
Gas supply unit
LPG
2-4: Casting
Casting machine
O2, CO, and LPG indicator
Multi-channel Gas Monitoring System Model: RM-5003
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Detector head for oxygen deficiencies
Smart Transmitter/Gas
Detector Model: SD-1OX
Smart Transmitter/Gas Detector
Model: SD-1EC
Detector head for CO
Smart Transmitter/Gas Detector Model: SD-1
Detector head for LPGSafety
Description: A casting machine is used to produce engines and other cast products. In a casting machine, fuel is supplied from the gas supply unit to the melting furnace to melt aluminum.
Hazardous risks: LPG supplied to the casting machine may cause explosions. Oxygen deficiencies may occur in the underground pit.
Detecting organic solvents to prevent explosions and poisoning
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NH3
Heat treatment furnace control panel Heat treatment furnace
LPG
Gas supply unit
To burner
2-5: Heat treatment
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Combustible Gas Detector Head
Model: GD-A80
Smart Transmitter/Gas Detector
Model: GD-70D
Flame-proof Suction Type Gas
DetectorModel: GD-D58
Toxic Gas Detector Head
Model: GD-K88Ai
LPG and NH3 indicators
Multi-channel Gas Monitoring System
Model: GP-5001 (for LPG)Model: RM-5003 (for NH3)
Combustible Gas DetectorModel: GP-147
Detector heads for NH3
Detector heads for heat source (LPG/LNG)
Detector head for LPG
Safety
Description: Automotive parts are heat-treated in the heat treatment process.
Hazardous risks: Explosions or poisoning may occur in heat treatment furnaces in which gases including LPG, LNG, and NH3are used.
Detecting combustible gases to prevent explosionsDetecting NH3 to prevent poisoning
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Reformer FC experiment system
Methanol/CNG/LPG
Thermostatic oven
Monitoring panel
3. Laboratory
Multi-channel Gas Monitoring SystemModel: RM-5000
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Optical Interferometric Gas
AnalyzerModel: FI-800
Smart Transmitter/Gas Detector
Model: GD-70D
Detector head for CO, detector head for H2
Combustible Gas Detector Head
Model: GD-A80
Toxic Gas Detector Head
Model: GD-K88Ai
Detector heads for detecting CO leaks
Smart Transmitter/Gas Detector
Model: SD-1EC
Detector head for detecting H2 leaks
Safety
Description: In laboratories, various parts are tested in thermostatic ovens and other equipment. FC experiment systems and reformers are also tested.
Hazardous risks: H2 and fuel leaks from the FC experiment systems and reformers during experiments may cause explosions. The CO in the exhaust gas may lead to poisoning.
Detecting H2 and other combustible gases to prevent explosionsDetecting CO to prevent poisoning
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図探すか描く
Nox
酸⽋
酸⽋
Gasoline
Gasoline
Gasoline
NOx
NOx
NOx
Oxygen deficiency
Oxygen deficiency
Oxygen deficiency
Environmental testing laboratory
4. Engine laboratory and environmental testing laboratory
Multi-channel Gas Monitoring SystemModel: RM-5000
Flame-proof Suction Type Gas DetectorModel: GD-D58
Suction type detector head for gasoline
Toxic Gas Detector Head
Model: GD-K88Ai
Diffusion type detector head for
NOx
Oxygen Gas Detector Head
Model: GD-F3A-A
Diffusion type detector head for oxygen
deficiencies
Portable Multi Gas Detector
Model: GX-6000
To detect residual gases before entering
laboratoryTo detect gasoline
Portable Combustible Gas
DetectorModel: GP-1000
Description: Various tests are performed in engine and environmental testing labs, including engine experiments using actual vehicles and environmental tests.
Hazardous risks: Fuel leaks from vehicles during tests in engine and environmental testing labs may cause explosions. CO in exhaust gas may lead to poisoning.
Detecting combustible gases to prevent explosionsDetecting CO to prevent poisoning
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5. Vehicle testing laboratory
図探すか描く
Nox
酸⽋
酸⽋
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Monitoring panel
Multi-channel Gas Monitoring SystemModel: RM-5000
Flame-proof Suction Type Gas
DetectorModel: GD-D58
Detector head for H2
Combustible Gas Detector Head
Model: GD-A80
Detector heads for HC
Smart Transmitter/Gas DetectorModel: SD-1
Toxic Gas Detector Head
Model: GD-K88Ai
Smart Transmitter/Gas Detector
Model: SD-1EC
Detector heads for CO
Description: Driving tests are performed in the vehicle testing lab using actual vehicles.
Hazardous risks: Fuel leaks from the vehicle during tests in the vehicle testing laboratory may cause explosions. CO in the exhaust gas may lead to poisoning.
Detecting combustible gases to prevent explosionsDetecting CO to prevent poisoning
Safety
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Test bench laboratoryTest bench control panel
Tuning engine
CO
Gasoline Gasoline
6. Test bench
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Multi-channel Gas Monitoring System
Model: RM-5000
Detector head for oxygen deficiencies
Smart Transmitter/Gas Detector
Model: SD-1OX
Smart Transmitter/Gas Detector
Model: SD-1EC
Detector head for CO
Smart Transmitter/Gas Detector
Model: SD-1
Detector heads for gasoline
Combustible Gas Detector Head
Model: GD-A80
Description: Performance and durability tests of a tuning engine are performed in the test bench lab.
Hazardous risks: Engine fuel leaks can generate combustible gases and may cause explosions.CO in the exhaust gas from engine combustion may lead to poisoning.Oxygen deficiencies may occur during work in a closed space (for example, underground pits).
Detecting combustible gases to prevent explosionsDetecting CO to prevent poisoningDetecting oxygen concentration to prevent oxygen deficiencies
Safety
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・・・・・・
Exhaust gas
Electrode coating Electrolyte injection
7. Lithium battery production
Personal gas detector for workers
Four Gas Personal Monitor
Model: GX-2009
Detector head for O2
Smart Transmitter/Gas Detector
Model: SD-1OX
Portable Multi Gas Detector
Model: GX-6000
Environmental measurements before work
Detector heads for DMC
Flame-proof Suction Type Gas
DetectorModel: SD-D58
Smart Transmitter/Gas Detector
Model: SD-1RI
Smart Transmitter/Gas Detector
Model: SD-1GH
Detector head for NMP
Combustible/Toxic Gas Detector Head Model: GD-A80V
NMP monitor
Flame-proof Furnace Safety
Monitor Model: SD-2500
Model: GD-A2400
Description: Lithium battery production processes involve electrode coating and electrolyte injection.
Hazardous risks: Electrode coating processes can generate explosive NMP (N-methylpyrrolidone). Electrolyte injection processes can generate explosive DMC (dimethyl carbonate). Such gases may explode or generate oxygen deficiencies.
NMP and DMC detectors to prevent explosionsMeasuring oxygen concentration to prevent oxygen deficiencies
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8. Heating furnace
Heating furnace control panel
Heating furnaceTo burner
Gas supply facility
LNG
[Background of adoption]Particularly in countries other than Japan, LNG is purchased from multiple suppliers. Use of shale gas and other fuels is expected to increase in the future. Since fluctuations in calorific value affect burner performance significantly, OHC is also installed in the heating furnace to control calorific value.
Multi-channel Gas Monitoring SystemModel: RM-5000(for CO/LPG)
Combustible Gas Detector
Model: GP-147(for LNG)
Toxic Gas Detector Head
Model: GD-K88Ai
Smart Transmitter/Gas Detector
Model: SD-1EC
Detector heads for CO around furnace
Detector heads for LNG around gas supply facility and furnace
Flame-proof Suction Type Gas
DetectorModel: SD-D58
Smart Transmitter/Gas DetectorModel: SD-1
Combustible Gas Detector Head
Model: GD-A80
Explosion-proof Calorimeter
Model: OHC-800(for LNG)
Description: Heating furnaces are used to heat steel materials in automobile manufacturing.
Hazardous risks: Since fluctuations in the calorific value of the supplied fuel affect burner performance significantly, the calorific value must be controlled. Fuel (LNG) leaks and CO generation near the heating furnace may lead to explosions or poisoning.
Controlling calorific value with a calorimeterDetecting CO to prevent poisoningDetecting combustible gases to prevent explosions
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Major Examples of AccidentsPrepared by extracting and processing materials from the Safety at Work Site (Ministry
of Health, Labour and Welfare: http://anzeninfo.mhlw.go.jp/index.html)
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Case of acute organic solvent poisoning during cleaning of degreasing tank with trichloroethylene
[Location of accident]Trichloroethylene cleaning tank in a factory polishing automotive parts and providing metal surface treatment
[Cause of accident]A worker who entered the trichloroethylene tank to remove deposits from the inner wall with waste cloth soaked with trichloroethylene was found to have collapsed in a crouching position on the stand in the trichloroethylene tank.
[Damage/injuries]The worker was rescued immediately and transferred to the hospital. However, he died the next day without regaining consciousness.
Wearing gas detectors on a routine basis enables early detection of toxic gas leaks and improves work safety.
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Case of organic solvent poisoning during cleaning of paint film removal/cleaning tank for painting jigs for automotive parts
[Location of accident]Removal/cleaning tank for painting jigs in an automotive parts manufacturing plant
[Cause of accident]The victim entered the removal/cleaning tank at around 3:30 pm on the day of the accident to remove paint film sludge.He entered the bottom of the tank and gathered and discharged sediment from the tank. He was poisoned around 4:10 pm after discharging sediment three times.
[Damage/injuries]When the victim was found, he was found crouching and unconscious in the bottom of the washing tank. He was taken to the hospital by ambulance, treated, and regained consciousness approximately 2 hours and 10 minutes after the incident.
Wearing gas detectors on a routine basis enables early detection of toxic gas leaks and improves work safety.
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Product Information
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Personal Single Gas Monitors
Model: 03 series
FeaturesModels for use with rechargeable batteries have been added to the product line.
Standard protective covers protect the main unit from scratches, dirt, and shock.
Compact, lightweight design doesn’t interfere with work.
Inherently safe and explosion-proof enclosure is ideal for use in hazardous locations.GP-03
(For combustible gases)
OX-03(For oxygen)
HS-03(For hydrogen
sulfide)
CO-03(For carbon monoxide)
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Four Gas Personal Monitor
Model: GX-2009
FeaturesSuitable for use as an explosion-proof product, even in a hydrogen/acetylene atmosphere
IP 67 equivalent protection for safe use in outdoor work
Three alarm lamps and two alarm buzzers oriented in different directions to alert both the operator and those in surrounding areas
95+ dB buzzer audible even in the noisiest surroundings
Simultaneous display of gas concentrations of four components on large LCD screen
Also equipped with clock display and data logger functions
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FeaturesA single unit can simultaneously display up to six types of gases, including VOCs. This is the first product of its kind from a Japanese manufacturer.
The PID sensor enables measurements of more than 200 types of chemical substances subject to regulation.
Ideal for checking the risks and hazards of chemical substances as required under the Industrial Safety and Health Act
Support for multilingual display(Japanese, English, French, Spanish, etc.)
Equipped with convenient new functions, including panic alarm and LED flashlight
Portable Multi Gas Detector
Model:GX-6000
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FeaturesA single unit with a gas type switching function can detect 25 types of combustible gases.
The intrinsically safe explosion-proof enclosure (explosion-proof rating: Exia II CT4) enables measurement in Zone 0 Hazardous Areas at continuous risk of explosions.
Protection rating equivalent to IP 67 ensures secure outdoor work.
Once a cartridge-type filter (available separately) is attached to the standard probe, the probe can be customized for hydrogen sulfide removal or silicon removal based on the measurement environment.
Portable Combustible Gas Detector
Model: GP-1000
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Features Explosion-proof rating Exd II CT4 allows use in hydrogen and acetylene atmospheres.
Suction type and aspirator suction type operations are supported.(* A pump unit and a power supply [available separately] are required.)
The GD-A80-70 is also provided as a combustible gas detector head for use in high-temperature environments up to 70°C (normally 53°C).
Combustible/Toxic Gas Detector Heads
Model: GD-A80 series
GD-A80(For combustible gases)
GD-A80VGD-A80S*(For combustible or toxic gases)* The GD-A80S nameplate is blue.
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FeaturesSuitable for use as an explosion-proof product, even in a hydrogen/acetylene atmosphereWaterproof/dustproof enclosure (IP 65 equivalent) allows deployment in severe environments.Supports HART Communication Protocol, allowing transmission of more information over legacy analog 4-20 mA connection.* Excluding SD-1 (TYPE NC)SD-1RI, SD-1EC, and SD-1OX are SIL 2 certified in all parts of the functional safety standard, marking a first for Japanese manufacturers.Using the suction cap for the SD-1 series and connecting the detector to a suction pump or an aspirator unit enables suction type operation.Smart Transmitter/
Gas Detectors
Model: SD-1 series
SD-1SD-1RI
(For combustible gases) SD-1GH
(For combustible/toxic gases)
SD-1EC(For carbon monoxide/
hydrogen sulfide)
SD-1OX(For oxygen)
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FeaturesDetects high-boiling point solvent, N-methyl-2-pyrrolidone (NMP), evaporated in a dry facility.
Direct insertion into the furnace allows accurate measurements of concentrations at the center of the exhaust duct.
The furnace insertion section can be used in temperatures ranging from 0°C to + 160°C
The SD-2500 features an integrated structure combining the main unit and display unit, eliminating the need for a dedicated indicator unit.
Easy, straightforward operation by applying the control key
Flame-proof Furnace Safety Monitor
Model: SD-2500Model: GD-A2400
SD-2500(With concentration
display)
GD-A2400(Without concentration
display)
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FeaturesSuitable for use as an explosion proof product even in hydrogen atmospheres
Equipped with automatic flow rate abnormality detection function
Integrated assemblies of replacement parts improve maintainability.
Dustproof/waterproof enclosure (IP 67 equivalent)
One-person maintenance possible
Flame-proof Suction Type Gas Detector
Model : SD-D58Model : GD-D58
SD-D58(With concentration
indicator)
GD-D58(Without concentration
indicator)
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FeaturesTwo-wire gas detector headAllows direct transmission to the control system.
Equipped with pressure correction sensor resistant to changes in atmospheric pressure (GD-F88Ai, GD-F88Di)
Built-in aspirator (optional)Conventional external unit replaced by built-in unit(GD-K88Ai, GD-K88Di)
Corrosive gas resistant enclosureSUS enclosure available if requested by customer
Intrinsically safe explosion-proof enclosure combined with barrierIntrinsically safe explosion-proof enclosure
Oxygen/Toxic Gas Detector Heads
Model: GD-88 series
[Diffusion type]GD-K88Ai (for toxic gases)GD-F88Ai (for oxygen)
[Suction type]GD-K88Di (for toxic gases)GD-F88Di (for oxygen)
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FeaturesCompact, lightweight design allows installation anywhere.
Drip-proof enclosure allows installation outdoors.
The easily installed GD-F3A-SC-A is equipped with a signal converter for 4 mA to 20 mA transmission. Also allows long-distance transmission (up to 2.0 km).
Oxygen Gas Detector Head
Model: GD-F3A-A
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Optical Interferometric Gas Analyzer
Model: FI-800
FeaturesNo warmup required
Fast response
Long-term stability
Simple operation with easy-to-read digital display
No sensitivity degradation in the presence of silicone
Equipped with temperature and atmospheric pressure correction functions
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Explosion-proof Calorimeter
Model: OHC-800
Features Incorporates Riken Keiki’s unique “optsonic” calculation method (Japanese Patent No. 518483).Resistant to influence from incombustible gases for high-precision measurements
Fast response at 90% response within 5 seconds
High repetition accuracy within ±0.02 MJ/m3
Hydrogen explosion-proof enclosure (Exd IIB + H2T4) required for calorimeters allows installation in dangerous areas.
Excellent temperature characteristics, with temperature change of 0.10 MJ/m3 or less per day
Calorific value/specific gravity/Wobbe index switchable with key operation, eliminating troublesome calculations
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FeaturesAdopts universal design independent of detection principle to allow shared use of the main unit.
Power consumption reduced by 20% compared to past models (for constant potential electrolysis type)
Reusable parts
Allows recycling of constituent materials to reduce environmental impact.
Design complies with various international regulations.
Complies with CE requirements under RoHSDirective.
Smart Transmitter/Gas Detector
Model: GD-70D
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FeaturesEasy-to-read three-color LCD display recognizable from a distance
Single-point indicator/alarm unit
Lock-in specification selectable (optional)
RS-485 communication support (optional)
Single-Channel Gas Monitors
Model: RM-6000 series
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Combustible Gas Detector
Model: GP-147
FeaturesOption to use a back-up power supply can be selected individually for each detector head.
Capable of leak monitoring at hydrogen stations
Capable of early detection of hydrogen leaks (ppm) and explosion prevention (% LEL)
Improved visibility with green and red two-color LCD and bar meter display
Gas leaks and failures indicated by voice alarms (optional)
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FeaturesMany types of gas detector heads available
Gas concentrations are displayed in two ways: bar meter and digital display
High-contrast three-color LCD improves visibility of detected state.
Equipped with RS-485 communication function (optional)
Multi-channel Gas Monitoring Systems
Model: RM-5000 series
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Fixed PID VOC Monitor
Model: RVOC
FeaturesEquipped with photoionization detector (PID) optimum for VOC detectionSupport for three measurement ranges (0-10/100/1,000 ppm)Sensor structure resists effects of humidity and keeps foreign materials away from lamp.Measurement cycles configurable up to 5 minutes and 50 seconds at intervals of 10 seconds (Default: 1 minute)
Various functions with high working efficiencyEasily installed in control system (4-20 mA output)Switchable type (RVOC-10s) models are available.
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We are a pioneer in creating safe working environments for workers.